package runoob;
import java.lang.String;

// StringBuffer 
public class StringBufferDemo {
	
	public static void main(String[] args) {
		StringBuffer sbBuffer = new StringBuffer("菜鸟教程:");
		sbBuffer.append("www");
		sbBuffer.append(".runoob");
		sbBuffer.append(".com");
		System.out.println(sbBuffer);
	}

}
